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144275550 = 235219233171
BaseRepresentation
bin10001001100101…
…11100001011110
3101001110221211220
420212113201132
5243413304200
622152154210
73401215266
oct1046274136
9331427756
10144275550
11744923a1
1240398966
1323b76463
14152387a6
15c9ed4a0
hex899785e

144275550 has 192 divisors, whose sum is σ = 411402240. Its totient is φ = 33264000.

The previous prime is 144275539. The next prime is 144275563. The reversal of 144275550 is 55572441.

144275550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2032015 + ... + 2032085.

It is an arithmetic number, because the mean of its divisors is an integer number (2142720).

Almost surely, 2144275550 is an apocalyptic number.

144275550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 144275550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205701120).

144275550 is an abundant number, since it is smaller than the sum of its proper divisors (267126690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144275550 is a wasteful number, since it uses less digits than its factorization.

144275550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 144275550 is about 12011.4757627862. The cubic root of 144275550 is about 524.4823923426.

The spelling of 144275550 in words is "one hundred forty-four million, two hundred seventy-five thousand, five hundred fifty".